Method, device and system for generating passwords

Abstract

A method and a device for generating a password for access to a service. The method includes the following steps on a password generating device connected to a user terminal: obtaining a first item of data representative of at least one symbol; depending on the obtained first item of data, obtaining at least one second item of data having at least two symbols for a symbol of the first item of data; generating a third item of data, referred to as the password, from the at least one second item of data; and transmitting the password to the terminal.

1 . A method for generating a password for accessing a service, said method being performed on a password generating device connected to a terminal of a user and comprising:
 obtaining a first datum representative of at least one symbol;   as a function of the first datum obtained, obtaining at least one second datum comprising at least two symbols for one symbol of the first datum;   generating a third datum, called the password, from said at least one second datum; and   transmitting said password to the terminal.   
     
     
         2 . The method as claimed in  claim 1 , further comprising, prior to the transmitting, verifying the first datum obtained. 
     
     
         3 . The method as claimed in  claim 1 , further comprising, prior to the transmitting, verifying the password generated. 
     
     
         4 . The method as claimed in  claim 1 , further comprising performing an unlocking step prior to obtaining a first symbol of the first datum. 
     
     
         5 . The method as claimed in  claim 1 , furthermore comprising initializing the device, comprising recording a series of at least two symbols of the second datum in association with at least one symbol of the first datum. 
     
     
         6 . A device for generating a password, comprising:
 a transmitter,   a memory; and   a processor which is configured to:   obtain a first datum representative of at least one symbol;   as a function of the datum obtained, obtain a second datum comprising at least two symbols for one symbol of the first datum;   generate a third datum, called the password, from said at least one second datum; and   transmit said password via the transmission module.   
     
     
         7 . The device for generating a password as claimed in  claim 6 , furthermore comprising a human-machine interface for obtaining said at least one first datum. 
     
     
         8 . The device for generating a password as claimed in  claim 7 , in which the human-machine interface is a keyboard. 
     
     
         9 . The device for generating a password as claimed in  claim 6 , in which the transmitter comprises a serial interface. 
     
     
         10 . The device for generating a password as claimed in  claim 6 , in which the transmitter comprises a radio interface. 
     
     
         11 . (canceled) 
     
     
         12 . A non-transitory computer readable medium comprising code instructions stored thereon which, when the program is executed by a processor of a password generating device, carries out a method for generating a password for accessing a service, said method comprising:
 obtaining a first datum representative of at least one symbol;   as a function of the first datum obtained, obtaining at least one second datum comprising at least two symbols for one symbol of the first datum;   generating a third datum, called the password, from said at least one second datum; and   transmitting said password to a terminal of a user.